The question that haunts the federal inquiry into Maher Arar's torture nightmare in Syria is whether Canada was behind it all. Did Canadian officials make it known to the United States that everyone would be better off if Mr. Arar, a citizen of Canada, were dispatched to his Syrian birthplace rather than sent back home to Ottawa? Paul Cellucci, then the U.S. ambassador to Canada, was unequivocal in a letter he wrote to this newspaper, published last Canada Day, correcting what he said was an error in an editorial. "I have never said or implied that 'Canadian security officials gave...